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- Cell Biology 341 Friday Today chapter 10 on Membrane Structure Molecules found in membranes Last lecture finished chapter 7 MyoD is an activator

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Cell Biology 341 Friday, October 16, 2009 Today: chapter 10 on Membrane Structure Molecules found in membranes Last lecture: finished chapter 7 MyoD is an activator that triggers muscle cell differentiation Ey is an activator that regulates development of the eye Analysis of regulatory regions by fusion to a reporter gene Analysis of transgenic eve expression: activators and repressors compete for binding to the stripe 2 control module Both activators must bind to all of their sites to activate transcription; the repressors only need to block one site Kruppel (repressor) and Hunchback (activator) = zinc fingers, Bicoid = homeodomain, Giant = leucine zipper See The Interactive Fly at http://www.sdbonline.org/fly/aimain/1aahome.htm See http://globin.cse.psu.edu/ for globin genes
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Chapter 10: Membrane Structure The Lipid Bilayer and Membrane Proteins The plasma membrane is a selective barrier surrounding all cells Membrane proteins transport molecules, act as receptors and catalyze biosynthetic processes The organelle membranes of eucaryotic cells contain different proteins, and often different lipids, that contribute to the organelle’s function The lipid component of biological membranes is arranged in two sheets of molecules called a lipid bilayer
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This note was uploaded on 12/05/2009 for the course BIO 341 taught by Professor Noris during the Fall '09 term at Rhode Island.

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- Cell Biology 341 Friday Today chapter 10 on Membrane Structure Molecules found in membranes Last lecture finished chapter 7 MyoD is an activator

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